Slice Auto-Retractable Box Cutter with patented Slice ceramic safety blade reduces injuries and lowers costs. Ergo J-Hook handle protects hands during use and limits exposed blade, making for a safer, more comfortable cutting experience. Blade automatically retracts back into housing when slider button is released for added safety. Includes one (1) patented Slice ceramic safety blade with safer rounded tips. Lasts up to 10x longer vs. metal blades. Safer vs. metal blades due to our proprietary manufacturing and sharpening process. Used by more than half the Fortune-1000 safety professionals in 35+ countries.